https://www.amazon.com/gp/product/B...822c560d8770285f0INT&smid=A3280U0Q46DDR2&th=1 12" x 24" Ocoopa Graphene 8-Layer Heatlock Heating Pad with 6 Heat Settings (Gray) on sale for $19.99 - $10 when you apply promo code UZRTAH53 at checkout = $11.99 -> now $9.99. Shipping is free with Prime or on $35+ orders.